A nine-hour armed standoff ended peacefully in St. John's on Sunday morning.

The Royal Newfoundland Constabulary arrested a man in the Springdale Street area after he barricaded himself in a house around 9:00 on Saturday night.

Police discovered the 21-year-old suspect while investigating an armed robbery that had taken place at a convenience store in the area earlier in the day. A man armed with a knife entered the store at 3:30 p.m. and demanded cash and cigarettes, before fleeing on foot. 

The Constabulary's Tactics and Rescue Unit, K-9, major crime and forensics units were on scene and contained the area for about 10 hours.

RNC crisis negotiators established and maintained communication with the man for more than six hours and shortly after 5 a.m., apprehended him without incident.

The man was immediately taken into custody and charged with pointing a firearm, careless use of a firearm, breaches of court order and three warrants of arrest.

He will appear in court on Sunday.